why does plasma have 600hz and lcd 50/100/200
i noticed i dont like 100hz cause on the led with normal tv viewing the picture left like a shadow
Marketing gimmick. Plasmas are made up of 10 fields of 60Hz, so they say 10*60Hz = 600Hz in order to inflate numbers to trick customers. It then "competes" with LCD Hz ratings which is nonsense. Unfortunately when you combine the general public's willingness to buy into marketing, TV salesmen can sell anything by abusing these marketer fibs.
Other examples are:
1) Samsung's CMR motion rating up to like 800 CMR (400Hz). Often mis-advertised as CMR Hz or even just Hz in brochures.
2) Contrast ratios of 1,000,000s to 1 which are dynamic (normally "Dynamic" picture mode on the TV) which is exaggerated and measured with the screen pumping out brightness and over saturated colours. This simply means that not only are colours inaccurate, but when there are bright areas on the screen, darker areas cannot display properly either. Perhaps the best tactic used is on brightly lit showroom floors where TVs are all set to dynamic modes to make them stand out to customers.
3) Millisecond response times in PC screens. Inaccurate and usually measured with grey to grey when it should be black to white/colours etc. It's perceived to be accurate and better, giving rise to users/gamers who
must have a 2ms screen instead of a 5 or even 12ms screen of higher LCD panel/picture quality.
Since plasma is self-illuminated and not back-lit, it generally has a higher
static contrast ratio. Greater difference between the whitest white and darkest black, as well as the ability to better distinguish between them with more detail in dark areas, especially while bright areas are displaying.
and howcome you cant notice it on the plasma
Not quite sure but probably because 100+Hz LCDs are adding more of their own data to the source/feed to smooth it out, and not doing a good job of it perhaps due to the lower source quality.
That ought to confuse him.
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